@Article{ 
  dalfra02,
  author = { Dal Maso, Gianni and Frankowska, Helene },
  title = { Autonomous Integral Functionals with Discontinuous Nonconvex Integrands: Lipschitz Regularity of Minimizers, DuBois-Reymond Necessary Conditions, and Hamilton-Jacobi Equations },
  journal = { Applied Math. Optim. },
  year = { 2003 },
  volume = { 48 },
  pages = { 39-66 },
  URL = { http://cvgmt.sns.it/paper/515/ },
  note = { cvgmt preprint}
}